Couple of fixes for removing links

Change-Id: I604bd3b28d41d2e79285bebfefe9f718a3d5011d
diff --git a/src/main/java/net/onrc/onos/ofcontroller/networkgraph/NetworkGraphDatastore.java b/src/main/java/net/onrc/onos/ofcontroller/networkgraph/NetworkGraphDatastore.java
index 9fd7f86..d34ac46 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/networkgraph/NetworkGraphDatastore.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/networkgraph/NetworkGraphDatastore.java
@@ -230,6 +230,7 @@
 				//rcSrcPort.update();
 				//rcDstPort.update();
 				rcLink.delete();
+				return;
 			} catch (ObjectDoesntExistException e) {
 				log.error("Remove link failed {}", linkEvent, e);
 				return;